<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width,initial-scale=1.0">
        <title>Document</title>

    </head>
    <body>
        <div id="app">
            <h1>{{msg}}</h1>

        </div>

        <!--引入vue模块-->
        <script type="module">
            import {createApp} from 'https://unpkg.com/vue@3/dist/vue.esm-browser.js';
            /*创建vue的应用实例*/
            createApp({
                data(){
                    return {
                        msg:'hello vue3'
                    }
                }
            }).mount("#app") /*将id为app的模块交给vue*/
        </script>
    </body>
</html>